/*
 *
 * This file is part of QMapControl,
 * an open-source cross-platform map widget
 *
 * Copyright (C) 2007 - 2008 Kai Winter
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with QMapControl. If not, see <http://www.gnu.org/licenses/>.
 *
 * Contact e-mail: kaiwinter@gmx.de
 * Program URL   : http://qmapcontrol.sourceforge.net/
 *
 */

#ifndef WMSMAPADAPTER_H
#define WMSMAPADAPTER_H

#include "qmapcontrol_global.h"
#include "mapadapter.h"

namespace qmapcontrol
{
//! MapAdapter for WMS servers
/*!
 * Use this derived MapAdapter to display maps from WMS servers
 *	@author Kai Winter <kaiwinter@gmx.de>
 */
class QMAPCONTROL_EXPORT WMSMapAdapter : public MapAdapter
{
public:
    //! constructor
    /*!
     * Sample of a correct initialization of a MapAdapter:<br/>
     * MapAdapter* mapadapter = new WMSMapAdapter("www2.demis.nl",
     * "/wms/wms.asp?wms=WorldMap[...]&BBOX=%1,%2,%3,%4&WIDTH=%5&HEIGHT=%5&TRANSPARENT=TRUE",
     * 256);<br/> The placeholders %1, %2, %3, %4 creates the bounding box, %5 is for the
     * tilesize The minZoom is 0 (means the whole world is visible). The maxZoom is 17
     * (means it is zoomed in to the max)
     * @param host The servers URL
     * @param serverPath The path to the tiles with placeholders
     * @param tilesize the size of the tiles
     */
    WMSMapAdapter(QString host, QString serverPath, int tilesize = 256);
    virtual ~WMSMapAdapter();

    virtual QString serverPath() const;
    virtual QPoint coordinateToDisplay(const QPointF &) const;
    virtual QPointF displayToCoordinate(const QPoint &) const;
    virtual void changeHostAddress(const QString qHost,
                                   const QString qServerPath = QString());

protected:
    virtual void zoom_in();
    virtual void zoom_out();
    virtual QString query(int x, int y, int z) const;
    virtual bool isTileValid(int x, int y, int z) const;

private:
    virtual QString getQ(qreal ux, qreal uy, qreal ox, qreal oy) const;

    qreal coord_per_x_tile;
    qreal coord_per_y_tile;

    QHash<QString, QString> mServerOptions;
    QHash<int, qreal> mResolutions;
};
}
#endif
